Existence of the magnetization plateau in a class of exactly solvable Ising-Heisenberg chains

Abstract

The mapping transformation technique is applied to obtain exact results for the spin-1/2 and spin-S (S=1/2,1) Ising-Heisenberg antiferromagnetic chain in the presence of an external magnetic field. Within this scheme, a field-induced first-order metamagnetic transition resulting in multiplateau magnetization curves, is investigated in detail. It is found that the scenario of the plateau formation depends fundamentally on the ratio between Ising and Heisenbrg interaction constants, as well as on the anisotropy strength of the XXZ Heisenberg interaction.

16 pages, 10 figures, submitted to J. Phys: Condens. Matter

References in corpus (3)

• Quantum magnetization plateaux of an anisotropic ferrimagnetic spin chain
• Infinite series of magnetization plateaus in the frustrated dimer-plaquette chain
• Magnetic properties of exactly solvable doubly decorated Ising-Heisenberg planar models

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